Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:43Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
det| 1 4 ; 3 2 | = -10
339K
det| 11 4 ; 5 12 | = 112
177K
det| 9 4 ; 1 10 | = 86
121K
∫₀^∞ e^(-t²) dt = √π / 2
316K
det| 2 7 ; 7 3 | = -43
387K